Kb177

Emulab FAQ: Testbed Operations: What does "Node Checkin Error" mean?

Emulab FAQ: Testbed Operations: What does "Node Checkin Error" mean?

> Subject: SCHOONER.NET: Node Checkin Error
> A node attempted to check in as a new node, but it is already
> in the database as pc-i2-45-a!
>
> Does anybody know what this problem is and how to fix it?

This means that the node booted our "newnode" MFS, and tried to check in as a brand-new node.

The most likely reason for this is that the node's control network MAC address is incorrect in the interfaces table. I'd check the contents of that table against the output of ifconfig on the node.

You can also reboot the node and watch the /usr/testbed/log/dhcpd.log on boss. That will list the MAC address of all requests. Look for a request which gets assigned an address from your dynamic range.